Air valve



n 1930- J. F. SCHYLANDER 1,762,483

AIR VALVE Filed April 9, 1927 M61 MW w found applicable.

Patented June 10, 1930 UNITED STATES JOHN F. SCHYLANDER, OF CHICAGO,ILLINOIS,

ASSIGNOR TO JAS. P. MARSH &; GOM- PANY, OF CHICAGO, ILLINOIS, ACORPORATION OF ILLINOIS AIR VALVE Application filed April 9, 1927.Serial No. 182,411.

My invention relates to that general class of devices known as valvesand particularly automatic air valves or the like. More especially thesame relates to an improved housing 5 or casing construction made up ofstampings.

The invention has among its objects the production of a device of thekind described that is simple, durable, compact, etficient, inexpensiveand satisfactory for use wherever The invention has particularly as anobject the production of a base provided with a nipple, all constructedentirely of stampings which, when operatively assembled and securedtogether, is of great strength and light weight. It has as an object theproduction of a device made up of a combination of stampings which, whenassembled together, results in a more satisfactory inexpensive device,than constructions 0 heretofore employed in devices of this kind. Manyobjects and advantages of the construction herein shown and describedwill be obvious to those skilled in the art from the dis closure hereingiven.

To this end my invention consists in the novel construction, arrangementand combination of parts herein shown and described, and moreparticularly pointed out in the claims.

In the drawings, wherein like reference characters indicate like orcorresponding parts:

Fig. 1 is a sectional view through my improved valve;

Fig. 2 is a sectional view ly on line 2-2 of Fig. 1;

Fig. 3 is a sectional view taken substantial- 1y on line 3-3 of Fig. 1;

Fig. 4 is a top plan view of the base with the upper part 2 removed Fig.5 is a sectional view taken on line 5-5 of Fig. l;

Fig. 6 is aperspective'view fore application of the nipple; -"Fig. 7 isa perspective view of the nipple partially completed;

Fig. 8 is a sectional view taken substantially on line 8-8 of Fig. 9 andFig. 9 is a bottom view of the baseand nipple.

35 taken substantialof the base be- Referring to the drawings, in whichan embodiment of the invention is shown, the complete housing of myimproved valve consists of a cup-shaped base part 1 provided with thenipple 9 and the housing part 2, the same all being stampings. The basepart 1 is stamped out cup-shaped and offset outwardly at 3 about aportion of its peripheryto form the rim 4 with a shoulder 5 at theinterior. The shoulder 5 extends around the base to points at eitherside of the nipple opening 7. At the side where the opening is, the faceof the base is substantially straight from top to bottom, as will beobvious by referring to Figs. 1 and 6, the bottom portion extending moreor less straight from the center as at 6 to the face 6. The bottom andwall adjacent the opening while curved is not a true semisphericalsurface as may be seen by reference to Figs. 1, 6 and 8, the advantageof this being hereinafter pointed out. It will be noted that the nippleis eccentrically disposed with respect to the curvature (see Fig. 8) ofthe bottom and that this construction prevents displacement of the basepart 1 upon the bottom. The nipple is stamped out from a disc to substantially the form shown in Fig. 7 so as to provide a nipple bodyportion or flange 8 with the shank 9, the shank being tubular asindicated at 10. At a later operation the shank is cut off at 14 (seeFig. 4E) and externally threaded as indicated at 15 so that the opening10 extends entirely through the same. The body portion 8 is out offstraight as indicated at 11, with a shoulder 12 and shoulder 12 formedat either side, the parts being so constructed that the shoulders 12when the nipple part is secured in place, are substantially flush orlevel with the shoulder 5 about the base. The nipple is positioned withthe part 8 inside of the base andthe shank 9 projecting through theopening 7. The same is then securely soldered, brazed or 1 otherwisesecured. In this connection, it may be mentioned that after the nipplepart is inserted in the base and before soldered, the base is stackedabout the nipple, that is to say, that ltiS pressed inwardly, (see 7/Figs. 1 and 6) around the shank 9 so that when solder is applied on theinsidebetween the body 8 and strength of an integral structure. This isparticularly true after the plate 16 isapplied as hereinafter described.

It will be particularly noted that owing to the confirmation of the baseand nipple part,

the surfaces in contact about the opening'a're not true sphericalsurfaces and consequently there is no chance for the nipple part torotate or turn as would be the case if the surfaces were semi-spherical.

Mounted in the base is a plate 16 which is preferably formed with wings17 and 18, this plate being of a size to fit in the base and rest uponthe shoulder 5, the same being preferably slightly arched at its center.It will be noted that the wings 17 overlie the shoulders 12 and abutagainst the shoulders 12. Where the valve is provided with the siphontube 23, the plate is provided with the depending parts 19 and 21. Thepart 19 is preferably slightly turned back as indicated at 20, while thepart 21 is provided with an opening through which the end of the tube 22projects, the outer end being bent laterally as at 23. The inner end ofthe tube 22 is preferably fiared so that it is of greater size than theopening in 21 and is thereby locked in place. An equivalent method oflocking the tube in place may be employed. The tube has a limitedmovement or adjustment between the portions 19 and 21 and is freelyrotatable in the nipple so that it does not interfere with theapplication'of the valve to the radiator or other installation, and sothat it will also hang as shown in Fig. 1, when installed.

The housing part 2 is of a size to closely fit the inner wall of thebase about the rim 4 and to overlie the plate 16. It also overlies thetop edge 11 of the nipple part when seated in the base, the depth of theshoulder 12 being substantially equal to the width of the plate wings 17After the float 28 has been positioned within the casing, the housingpart 2 is positioned on the base and securely soldered, brazed orotherwise secured. It will be noted that the nipple portion of the baseis thus secured not only by the solder between thepart 8 and'the base,but also by reason of the plate 16 bearing on the shoulders 12 and onthe shoulders 12, but by further securing of the upper housing 2 inplace as this rests upon the face 11, as well as upon the plate 16. Thenipple portion is, therefore positively and rigidly secured in the basewithout relying entirely on the solder or its equivalent. In fact, oneof the main functions of the solder is to form a seal and preventleakage, as well as to assist in retaining the nipple in place. Theresult is that the nipple may be screwed into a radiator vent withoutany danger of the same breaking loose from the base. It is frequentlynecessary in applying the-valve to a radiator to turn the valve withconsiderable pressure in order to bring the same to an upright positionor to turn or to back it off if it is not possible to turn it tooperative position, which may cause it to be loosely held on theradiator. When the construction described, it may be turned down verytightly without breaking loose as would be very likely the case were thenipple only secured by solder to the outside or inside of the shell andsolder alone relied upon to secure The particular casing part 2 shown isprovided with inwardly extending grooves 26.

forming guides for the float, as well as formmg water or air passages27. The bottom is constructed to conform to the base. The float shown isprovided with a valve stem 29 having a valve face 33 arranged'tocooperate with the seat 32 formed in the nozzle 30 which is suitablysecured to the housing or casting. The nozzle is provided with the duct31, the passage of air through the duct being controlled by the valve.describe the operation of the valve as such structures are well-known inthe art and familiar to those skilled therein.

It will be seen. from the preceding that my improved casing consists ofall metal stampings which may be secured together to afford a rigid,durable. light weight and inexpensive construction. While I haveparticularly referred to the application of my invention to a well-knowntype of will be obvious that the construction is not limited toautomatic air valves as it may be embodied in any device wherein it isdesired to provide a nipple projecting from a housing adjacent the baseand forming a part of the construction.

Having thus described my invention, it is obvious that variousimmaterial modificatons may be made in the same without departing fromthe spirit of my invention; hence I do not wish to be understood aslimiting myself to the exact form, construction, arrangement andcombination of parts herein shown and described or uses mentioned.

What I claim as new and desireto secure by Letters Patent is:

1. In a device of the character described, a housing, a cup shaped basereceiving one end of the housing, a face on one side of the base havingan opening therethrough, a nipple in said opening, and a curved fiangehaving a center of curvature spaced from the center of said nipple onthe inner end of the nipple of a shape conforming to the inner wall ofthe base around said opening.

It is believed unnecessary to.

automatic air valve, it

2. In a device of the character described,

a housing, a cup shaped base therefor, a lateral extension on the baseformed with a face at one side having an opening, a nipple in saidopening, and a curved flange on the inner end of said nipple conformingto the inner wall face of the base around said opening, said curvedflange having one center of curvature spaced from the center of saidnipple.

3. In a device of the character described, a housing, a hollow basestamped from a sin gle piece of metal, a nipple forming communicationwith the interior of the base, and a curved flange eccentricallydisposed with respect to and integral with the nipple and cooperatingwith the base and conforming to the interior curved surface thereof toretain the nipple against movement relative to the base.

4:. In a device of the character described, a housing, a hollow basestamped with a single piece of metal, an inwardly extending shoulder insaid base, a threaded nipple forming communication with the interior ofthe base, a flange integral with the nipple and conforming to the curvedsurface of the base and cooperating therewith to retain the nippleagainst movement relative the base, and means in the base resting uponsaid shoulder and having operative engagement with the flange to assistin retaining said flange and nipple against movement relative to thebase.

5. In a device of the character described, a housing, a hollow basetherefor stamped from a single piece of metal, a nipple formingcommunication with the interior of the base, a flange integral with thenipple and cooperating with the base to retain the nipple and flangeagainst movement relative the base, a horizontal portion on the flange,a shoulder at each end of the horizontal portion, and means in the basehaving operative engagement with said shoulders to assist in retainingsaid flange and nipple against movement relative to the base.

6. In a device of the character described, a cup shaped base memberstamped from a single piece of metal, a nipple extending through onewall of the base, a flange on the inner end of the nipple cooperatingwith the baseto retain the nipple and flange against movement relativethe base, a horizontal portion 011 the flange, a shoulder at each end ofthe flange, means in the base having operative engagement with theshoulders to assist in retaining the nipple and flange against movement,and a housing having one end fitted in the base and bearing against saidmeans. i

7. In a device of the character described, a cup shaped base memberhaving a shoulder, a nipple extending through one wall of said basemember, a flange on said nipple having a center of curvature spaced fromthe center of said nipple, said flange conforming to and cooperatingwith the base member to retain the nipple and flange against movementrelative to the base, a straight portion on the flange, a plurality ofshoulders on said st aight portion, a plate resting on said shoulder ofsaid base member and said shoulders on said flange and a housing fittinginto said base member and engaging said plate to retain same on saidshoulders.

8. In a device of the class described, a housing, a cup-shaped basetherefor, a nipple extending through a wall of said base in one sidethereof, said nipple having a curved flange disposed interiorly of saidbase and conforming to and cooperating with a curved wall of said basefor retaining said nipple against movement relative to said base, aplate within said base cooperating with said flange for furtherretaining said nipple against movement, the ends of said plate be ingbent, and a movable tube extending through said nipple and through oneof the bent ends of said plate, the movement of said tube being limitedby said bent ends.

9. In a device of the class described, a housing, a cup-shaped basetherefor, a nipple extending through a wall of said base in one sidethereof, said nipple having a curved flange disposed interiorly of saidbase and conforming to and cooperating with a curved wall of said basefor retaining said nipple against movement relative to said base, aplate within said base cooperating with said flange for furtherretaining said nipple against movement, the ends of said plate beingbent, a movable tube extending through said nipple and through one ofthe bent ends of said plate, the movement of said' tube being limited bysaid bent ends, and an edge of said housing engaging a portion of theflange of said nipple to further retain said nipple against movement.

10. In a device of the class described, a housing, a cup-shaped basetherefor, a face on one side of the base having an opening therethrough,a nipple in said opening, and a curved eccentric flange upon the innerend of said nipple of a shape conforming to the inner side and bottomwalls of the base around said opening, said flange and walls cooperatingto retain said nipple in said base.

In testimony whereof, I have hereunto signed my name.

JOHN F. SCHYLANDER.

